Home / 21,462.57-32,182.91-8,979.21

Finding the Fourth Proportional to 21,462.57, 32,182.91 and 8,979.21

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Solution

The fourth proportional to 21,462.57, 32,182.91 and 8,979.21 is: 13,464.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,462.57 : 32,182.91 = 8,979.21 : x
  2. Step 2: Convert to fraction form
    21,462.57/32,182.91 = 8,979.21/x
  3. Step 3: Cross multiply
    21,462.57x = 32,182.91 × 8,979.21
  4. Step 4: Simplify right side
    21,462.57x = 288,977,062.41
  5. Step 5: Solve for x
    x = 288,977,062.41/21,462.57
  6. Step 6: Final answer
    x = 13,464.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.